High end speakers without bi-wiring?

Recently, I've read quite a few posts that disclaim the benefit of bi-wiring. The claim is that for bi-wire capable speakers, there is no noticeable difference between bi-wired and single-wired connection, assuming good quality jumper cabbles are used for single-wired configuration.
Then, is there a move from high end speaker manufacturers to forget about the bi-wiring option and just provide single wire for their high-end speakers?
(Well, bi-amping is another issue, but let's not consider bi-amping.)